... 3200 W plastic welding machine, 4200 W – 5600 W high power plastic welding machine and other precision welding equipment: double-head ... 1. Welding area for large and complex, welding the high requirements products, superior welding results; 2. Digital set ... , mobile phone accessories, cell phone case, battery case, charger, maintenance valve regulated lead-acid batteries, 3-inch floppy disk, U disk ...